Google is already testing out driverless cars, and now a new patent has revealed even more cool features the company could bring to the vehicles of the future. The patent shows that Google might be developing hands-free technology for other parts of the car like the windows and air conditioning.

The patent, which was awarded to Google on 27 January, indicates that sensors could be embedded in the car’s interior to pick up a driver’s gestures.

The technology would allow drivers to use hand gestures to do things like open windows or change the temperature in the car. Instead of fiddling with buttons and knobs, drivers could just move their hand a certain way to control the car. It's unclear what Google's exact plans are for these features. They could be used to make it easier for drivers to pay attention to the road, or they might just be another feature of potential self-driving cars.